My Panther Chameleon will be 4 months old, I've had him for almost 1 month. I ordered silk worms so that I can hand feed him, but he hides when I open the door to his cage and he won't come out from hiding. I don't want him to be afraid of me, I want him to trust me. How long will it take for him not to be shy or afraid? I haven't even held him yet. Is this normal? Any help will be greatly appreciated.